Results 1 to 10 of about 5,964 (246)

Modelling of negative equivalent magnetic reluctance structure and its application in weak-coupling wireless power transmission [PDF]

open access: yesNature Communications
In weak-coupling wireless power transmission, increasing operating frequency, and incorporating metamaterials, resonance structures or ferrite cores have been explored as effective solutions to enhance power efficiency.
Yuanxi Chen   +3 more
doaj   +2 more sources

A MEMS Variable Reluctance Sensor for Contactless Detection of a Ferrous Rotating Target [PDF]

open access: yesSensors
Variable reluctance sensors are widely adopted for robust and contactless detection of motion in harsh and space-constrained environments. This paper presents a MEMS-based variable reluctance induction sensor for the noncontact characterization of ...
Dorra Nasr   +9 more
doaj   +2 more sources

Full-speed sensorless control system of synchronous reluctance motor with flux saturation model [PDF]

open access: yesScientific Reports
To solve the problem that the rotor estimation accuracy is greatly affected by parameter nonlinearity and high frequency oscillation, when the synchronous reluctance motor adopts the sensorless control system.This article proposes a new flux saturation ...
Hui Cai, Wen-jian Luo
doaj   +2 more sources

Controlling magnetic inductance by air-gap configuration in power electronics applications [PDF]

open access: yesArchives of Electrical Engineering, 2023
Gapped magnetic components are inherent to applications where conversion of power would force magnetic flux density beyond the saturation point of magnetic materials.
Rafal Kasikowski
doaj   +1 more source

Position Sensorless Control of Switched Reluctance Motor under Magnetic Field Saturation [PDF]

open access: yesE3S Web of Conferences, 2021
When the switched reluctance motor is running, as the motor phase current increases, the magnetic circuit of the motor will gradually saturate, which affects the estimation of the special position of the motor rotor.
Qiu Chunyuan, Sun Baojiang
doaj   +1 more source

Calculations and measurements of torque and inductance of switched reluctance motors with laminated and composite magnetic cores [PDF]

open access: yesArchives of Electrical Engineering, 2022
The performance of drives with switched reluctance motors (SRMs) depends on magnetic materials used in their construction which influence static parameters such as inductance and electromagnetic torque profiles.
Marek Przybylski
doaj   +1 more source

On the Origin of the Magnetic Concentration Gradient Force and Its Interaction Mechanisms with Mass Transfer in Paramagnetic Electrolytes

open access: yesFluids, 2021
The objective of this work is to analyze the origin of the magnetic concentration gradient force. The force will be studied in a diffusion system where a paramagnetic electrolyte diffuses through a thin, inert membrane under the influence of a ...
Magne Waskaas
doaj   +1 more source

Highly reliable switched reluctance motor for the traction electric drive system of railway rolling stock

open access: yesОмский научный вестник, 2023
The main purpose of this work is to create conditions for the use of switched reluctance motor in the traction electric drive system of rolling stock by increasing the reliability of its bearings.
E. E. Miroshnichenko
doaj   +1 more source

Radial self-stabilizing reluctance magnetic bearing

open access: yesProcedia CIRP, 2021
Abstract A novel design for a minimum loss reluctance magnetic bearing, with only one active control loop, will be presented in this paper. On the basis of extensive numerical simulations, the suitability of the bearing concept for machine tools and other possible applications are discussed. The results of the mostly finite element method simulations
Manuel Stadler   +2 more
openaire   +1 more source

Research on the Non-Magnetic Conductor of a PMSM Based on the Principle of Variable Exciting Magnetic Reluctance

open access: yesEnergies, 2021
A permanent magnet synchronous motor (PMSM) based on the principle of variable exciting magnetic reluctance (VMRPMSM) is presented. The motor is equipped with symmetrical non-magnetic conductors on both sides of the tangential magnetized permanent ...
Chunyan Li   +3 more
doaj   +1 more source

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